Applicable air tightness testing device

By designing a suitable air tightness test device, using polyurethane sealing and limiting devices, the problems of air leakage and low efficiency in traditional air tightness tests are solved, and efficient and accurate air tightness tests are achieved, protecting the product and reducing costs.

CN223050801UActive Publication Date: 2025-07-01WUXI JINGSHENG AUTOMOTIVE ELECTRONICS
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Patent Information

Application Number
CN202422223539.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-07-01
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

Traditional air tightness tests are prone to air leakage and poor sealing effect, resulting in inaccurate product test results, low efficiency, and easy damage to the outer surface of the product.

Method used

A suitable airtightness testing device is designed, using polyurethane gaskets and limiting devices, combined with mechanical automation to ensure sealing effect and product protection.

Benefits of technology

It improves the product's pass rate, reduces manual operation, improves the accuracy and efficiency of testing, reduces production costs, and extends the service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an applicable air tightness testing device, which comprises a mounting plate, a fixed connecting plate, a bearing seat, an air cylinder, a mounting block and a sealing gasket, the fixed connecting plate and the bearing seat are both fixed on the mounting plate, the air cylinder is mounted on the fixed connecting plate, the output end of the air cylinder is fixedly connected with the mounting block, and the sealing gasket is arranged on the mounting block. The sealing gasket is fixed on the mounting block, the size of the sealing gasket is larger than that of a to-be-detected hole of a product, and the sealing gasket is provided with a vent hole. The air tightness testing device not only solves the problems of easy air leakage and poor sealing effect in the air tightness testing process in the prior art, but also improves the qualified rate of products, reduces manual operation, and provides powerful support for improvement of product quality and reduction of production cost.
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Description

Technical Field

[0001] The utility model relates to the field of airtightness testing, and specifically to an applicable airtightness testing device. Background Art

[0002] There are many products that need to test the airtightness of holes.

[0003] In the traditional airtightness testing process, manual feeding and manual inflation are often used. There are often problems such as incomplete sealing, incomplete feeding, and no limit, resulting in air leakage in the airtightness testing of products, damage to the outer surface of the products, inaccurate test results, and low efficiency. Content of the Utility Model

[0004] To solve the defects of the above-mentioned existing technologies, the utility model provides an applicable airtightness testing device. The utility model not only solves the problems of easy air leakage and poor sealing effect in the airtightness testing process of the existing technologies, but also improves the qualified rate of products, reduces manual operation, and provides strong support for the improvement of product quality and the reduction of production costs.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme: An applicable airtightness testing device includes a mounting plate, a fixed connecting plate, a bearing seat, a cylinder, a mounting block, and a sealing gasket. The fixed connecting plate and the bearing seat are both fixed on the mounting plate. The cylinder is mounted on the fixed connecting plate. The output end of the cylinder is fixedly connected to the mounting block. The sealing gasket is fixed on the mounting block. The size of the sealing gasket is larger than the size of the hole to be detected of the product. The sealing gasket is provided with a ventilation hole for introducing gas into the product.

[0006] Further, the fixed connecting plate includes a fixed wide section, an extended narrow section, and a mounting wide section that are fixedly connected in sequence. The fixed wide section is fixed on the mounting plate. The extended narrow section makes the mounting wide section higher than the bearing seat. The mounting wide section is used for mounting the cylinder. The width of the mounting wide section is larger than the width of the fixed wide section, so that the bearing seat is located below the cylinder.

[0007] Further, the bearing seat includes a receiving groove for receiving the product. An inlet groove is provided on the upper side of the receiving groove. The size of the inlet groove is larger than the size of the receiving groove, and a support step is formed at the receiving groove for supporting the product.

[0008] Further, the sealing gasket is made of polyurethane.

[0009] Further, a lower limit rod is also provided on the mounting plate, and an upper limit rod is provided on the mounting block. The upper limit rod corresponds to the lower limit rod.

[0010] Further, the fixed connection plate is provided with a cylinder fixing plate for fixing the cylinder, and the fixed connection plate is also provided with a transverse fixing rod.

[0011] Further, the mounting plate is fixed on the bottom plate, and the bottom plate is also provided with a handle and a start button.

[0012] In summary, the present utility model has achieved the following technical effects:

[0013] The present utility model not only optimizes the deficiencies of the prior art, but also has higher practicability and reliability. The structure of the device is exquisitely designed, and it can easily adapt to products of different specifications and shapes, achieving comprehensive coverage of airtightness testing. At the same time, the device is made of high-quality materials, ensuring that it is not easily damaged during the testing process and extending its service life;

[0014] The present utility model has the characteristics of simple operation and convenient maintenance. The operator only needs to operate according to the operation instructions to easily complete the testing work. At the same time, the structure of the device is reasonably designed, facilitating cleaning and maintenance, and reducing the use cost. Description of the Drawings

[0015] Figure 1 is a schematic diagram of an applicable airtightness testing device provided by an embodiment of the present utility model;

[0016] Figure 2 is Figure 1 the front view of

[0017] Figure 3 is a schematic diagram of the bearing seat. Detailed Description of the Embodiment

[0018] The following further details the present utility model with reference to the accompanying drawings.

[0019] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to this embodiment without creative contributions according to their needs after reading this specification, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically and clearly defined.

[0022] In the present utility model, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0024] Embodiment:

[0025] Figure 1 It is a schematic diagram of an applicable airtightness test device. Figure 2 is Figure 1Front view, including mounting plate 2, fixed connecting plate 4, bearing seat 6, cylinder 11, mounting block 7, and gasket 8. The fixed connecting plate 4 and the bearing seat 6 are both fixed on the mounting plate 2. The cylinder 11 is mounted on the fixed connecting plate 4. The output end of the cylinder 11 is fixedly connected to the mounting block 7. The gasket 8 is fixed to the mounting block 7. The size of the gasket 8 is larger than the size of the hole to be detected on the product. The gasket 8 is provided with a vent hole for introducing gas into the product. The mounting block 7 is provided with an air passage. One end of the air passage is communicated with the vent hole, and the other end is communicated with a seal tester for transporting gas and detecting airtightness. The seal tester can adopt a market model, which is prior art and will not be elaborated here.

[0026] The gasket 8 is made of rubber or other sealing materials.

[0027] The fixed connecting plate 4 includes a fixed wide section, an extended narrow section, and a mounting wide section that are fixedly connected in sequence. The fixed wide section is fixed on the mounting plate 2. The extended narrow section makes the mounting wide section higher than the bearing seat 6. The mounting wide section is used to mount the cylinder 11. The width of the mounting wide section is larger than the width of the fixed wide section, so that the bearing seat 6 is located below the cylinder 11.

[0028] The fixed connecting plate is divided into three sections and is an integrally formed structure, which is convenient for installation on the mounting plate, convenient for installing the cylinder, keeps the cylinder above the bearing seat, and is conducive to covering the gasket on the product.

[0029] Figure 3 It is a schematic diagram of the bearing seat. The bearing seat 6 includes a receiving groove 601 for receiving the product. An inlet groove 603 is provided on the upper side of the receiving groove 601. The size of the inlet groove 603 is larger than the size of the receiving groove 601, and a support step 602 is formed at the receiving groove 601 for supporting the product.

[0030] The size of the bearing seat is larger than the size of the product, and it can accommodate a variety of different products.

[0031] The gasket 8 is made of polyurethane, which has good sealing effect, will not leak air, and has good airtight detection effect.

[0032] A lower limit rod 5 is also provided on the mounting plate 2, and an upper limit rod 9 is provided on the mounting block 7. The upper limit rod 9 corresponds to the lower limit rod 5. Using the upper and lower limits to ensure that the pressure of the cylinder on the product will not be too large to damage the product, and the height of the upper and lower limits is selected according to the actual product.

[0033] The fixed connecting plate 4 is provided with a cylinder fixing plate 3 for fixing the cylinder 11, and the fixed connecting plate 4 is also provided with a horizontal fixing rod 10.

[0034] The mounting plate 2 is fixed on the bottom plate 1, and the bottom plate 1 is further provided with a handle 13 and a start button 12.

[0035] The start button 12 is a two-handed start button, and the air cylinder 11 is a guide rod air cylinder.

[0036] First, place the product in the carrier 6 for fixation, start it through the start switch 12, the guide rod air cylinder 11 presses down, the gasket 8 and the product are completely fitted, the upper limit rod 9 and the lower limit rod 5 limit the pressing position, and the cavity of the product is inflated through the air pipe and the airtight tester. After the airtightness test of the cavity is completed, the air cylinder lifts upward, and the airtightness test is completed.

[0037] The airtightness test device of the present utility model realizes the airtightness test of the product through its structural design, realizes no air leakage during the airtightness test process, has a good airtight sealing effect, improves the qualified rate of the product, and reduces manual operation.

[0038] The present utility model is also provided with a control system and a sensor for controlling the detection process, and the sensor is used to detect the internal air pressure. During the test process, the device realizes the precise control of the test environment through the precise control system and the sensor, ensuring the accuracy and reliability of the test results. At the same time, the device also has an intelligent alarm function, and a warning light is set. The warning light is installed on the bottom plate and is signal-connected to the control system. Once an abnormality occurs during the test process, it can issue an alarm in time to avoid unnecessary losses.

[0039] First of all, the device adopts mechanical automation operation, greatly improving the production efficiency. The operator only needs to place the product to be tested on the fixed product tooling, and then press the two-handed start button, and the device will automatically complete steps such as pressing down, sealing, and testing without manual intervention, improving the consistency and accuracy of the test.

[0040] Secondly, the polyurethane gasket used in the device has excellent sealing performance, which can ensure that there is no air leakage in the product during the test process. This design not only improves the qualified rate of the product but also ensures the reliability of the test results, which is helpful for the enterprise to control the product quality.

[0041] Furthermore, the device is equipped with a limiting device for limiting the pressing position of the air cylinder up and down, which can effectively prevent the air cylinder from pressing down excessively and causing product damage or test failure. This design not only protects the product but also extends the service life of the device.

[0042] Finally, the device also has a recycling function. For unqualified products in the test, they can be conveniently recycled to avoid waste of resources. This design helps the enterprise to achieve green production and conforms to the concept of sustainable development.

[0043] In summary, the airtightness testing device of the present utility model has the advantages of high automation level, good sealing effect, product protection, high recycling rate, etc., and can be widely applied to various products that need airtightness testing, providing strong support for enterprises to improve production efficiency, reduce costs, and ensure product quality.

[0044] The above description is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model are all within the scope of the technical solution of the present utility model.

Claims

1. An applicable air tightness testing device, characterized in that: The invention comprises a mounting plate (2), a fixed connection plate (4), a bearing seat (6), a cylinder (11), a mounting block (7), and a sealing gasket (8); the fixed connection plate (4) and the bearing seat (6) are both fixed on the mounting plate (2); the cylinder (11) is mounted on the fixed connection plate (4); the output end of the cylinder (11) is fixedly connected to the mounting block (7); the sealing gasket (8) is fixed to the mounting block (7); the size of the sealing gasket (8) is larger than the size of the hole to be detected of the product; and the sealing gasket (8) is provided with a ventilation hole; a lower limit rod (5) is also provided on the mounting plate (2); and an upper limit rod (9) is provided on the mounting block (7); and the upper limit rod (9) corresponds to the lower limit rod (5).

2. An applicable airtightness testing device according to claim 1, characterized in that: The fixed connection plate (4) comprises a fixed wide section, an extended narrow section, and a mounting wide section which are fixedly connected in sequence; the fixed wide section is fixed to the mounting plate (2); the extended narrow section enables the mounting wide section to be higher than the bearing seat (6); the mounting wide section is used to mount the cylinder (11); the width of the mounting wide section is greater than the width of the fixed wide section, so that the bearing seat (6) is located below the cylinder (11).

3. An applicable airtightness testing device according to claim 2, characterized in that: The bearing seat (6) includes a receiving groove (601) for receiving the product, an entrance groove (603) is arranged on the upper side of the receiving groove (601), the size of the entrance groove (603) is larger than the size of the receiving groove (601), and a supporting step (602) is formed at the receiving groove (601) for supporting the product.

4. The applicable airtightness testing device according to claim 1, characterized in that: The sealing gasket (8) is made of polyurethane.

5. The applicable airtightness testing device according to claim 1, characterized in that: The fixed connection plate (4) is provided with a cylinder fixing plate (3) for fixing the cylinder (11), and the fixed connection plate (4) is also provided with a transverse fixing rod (10).

6. The applicable airtightness testing device according to claim 1, characterized in that: The mounting plate (2) is fixed on the base plate (1), and the base plate (1) is also provided with a handle (13) and a power-on button (12).